1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BlackZzzverrR [31]
2 years ago
13

For the function -2x²+x+1 find f(3)

Mathematics
2 answers:
jenyasd209 [6]2 years ago
6 0

Answer:

f(3) = -14

Step-by-step explanation:

f(x)=-2x^{2} +x+1\\f(3)=-2(3)^2+3+1\\f(3) = -2(9)+4\\f(3) = -18+4\\f(3) = -14

nexus9112 [7]2 years ago
3 0

Answer:

-14

Step-by-step explanation:

Plug 3 in for x

-2 (3)² + 3 + 1

-2 (9) + 3 + 1

-18 + 3 + 1

-14

You might be interested in
Mrs. Jones decided to buy some pencils for her class. She bought 5 packages of pencils, and each package contained 42 pencils. T
Elena L [17]
Each student would get 15pencils
6 0
3 years ago
LMN is a straight angle. What is the<br> measure of ZOMP?<br><br> Pls answer ASAP!
zavuch27 [327]

Answer:

<OMP = 76 degrees

Step-by-step explanation:

since LMN is a straight angle, the angles must all add up to 180 degrees.

so 37 + 67 = 104

180 - 104=76 degrees

3 0
3 years ago
I need points 3+4%34
kkurt [141]

Answer:

I do too :(

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the circumference of a circle 68 yard circle?
kati45 [8]
427.26 yards- I am pretty sure.
7 0
3 years ago
Twin brothers, Billy and Bobby, kid mother grandparents lawn together for 60 minutes. Billy could mow the lawn by himself in 20
Dovator [93]

Answer:

Bobby around 131 minutes and Billy around 111 minutes

Step-by-step explanation:

To solve the problem it is important to raise equations regarding what happens.

 They tell us that Billy (Bi) and Bobby (Bo) can mow the lawn in 60 minutes. That is to say that what they prune in a minute is giving as follows:

1 / Bo + 1 / Bi = 1/60 (1)

They say Billy could mow the lawn only in 20 minutes less than it would take Bobby, therefore

1 / Bi = 1 / (Bo-20) (2)

Replacing (2) in (1) we have:

1 / Bo + 1 / (Bo-20) = 1/60

Resolving

(Bo - 20 + B0) / (Bo * (Bo-20) = 1/60

120 * Bo - 1200 = Bo ^ 2 - 20Bo

Rearranging:

Bo ^ 2 - 140Bo -1200 = 0

Now applying the general equation

Bo = 130.82 or Bo = 9.17, <em>this last value cannot be because Billy took 20 minutes less and neither can he prune faster than the two together</em>, therefore Bobby only takes around 131 minutes and Billy around 111 minutes

Checking with equation 1:

1/131 +1/111 = ~ 1/60

3 0
3 years ago
Other questions:
  • Eighth grade AA.8 Solve a system of equations using substitution clouds Solve using substitution. 4x + 7y = 9 y = 3 ( , ) Submit
    11·1 answer
  • I'm trying to find out if the system have a unique solution, no solution or infinitely many solutions
    12·2 answers
  • In which way do REITs resemble mutual friends
    8·1 answer
  • Their are 1,000 kids in one class 99 leave how many are left in one class?
    6·1 answer
  • What is the value of x in the equation 6(х + 1) — 5х = 8 + 2(x — 1)?
    6·1 answer
  • Hereeeeeeeee:) hellllllpppp
    14·2 answers
  • Solve this math problem first you get a free crown!
    9·2 answers
  • Simplify the following expression completely:( x 6 ) 7
    9·1 answer
  • Determine whether x=2 is a solution to the inequality -2x&lt; -4
    14·2 answers
  • Araba bought an electric Cooker for 540.00 ghanacedis at a discount of 10%.Find the actual price of the eletric cooker.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!